Atomic number 11Na
Sodium
সোডিয়াম
- Alkali metal
- Group 1
- Period 3
- Atomic mass 22.990 u
- Solid
- Electrons per shell
- 2, 8, 1
- Electron configuration
- 1s2 2s2 2p6 3s1
- Nucleus
- 11 protons, 12 neutrons
- Valence electrons
- 1
Speed1×
- Group
- 1
- Period
- 3
- Block
- s-block
- Category
- Alkali metal
- State at 25 °C
- Solid